A senior official from Japan's Foreign Ministry says US President Donald Trump and North Korean leader Kim Jong Un discussed the abductions of Japanese nationals by the North. Prime Minister Shinzo Abe has stressed that resolving the issue remains one of his government's top priorities.
During his news conference, Trump said South Korea's President Moon Jae-in and Abe would be among his first calls to explain the results of the two-day summit.
Japan's government says at least 17 citizens were abducted by North Korea during the 1970s and 80s.
Five returned in 2002. The other 12 remain unaccounted for.
When Abe spoke with Trump ahead of the summit, he reportedly expressed hope the summit would produce a positive outcome on the issue.